A convenient synthesis of the novel 5<i>H</i>-thieno[2,3-<i>e</i>]-4,1,2-oxathiazepine ring system<i>via</i>an alkoxycarbenium ion intermediate
作者:Anura P. Dantanarayana、Brian Dupre、Jesse A. May、Vincent M. Lynch
DOI:10.1002/jhet.5570360111
日期:1999.1
onamides and 3-hydroxymethyl-N-methoxymethyl-2-thiophenesulfonamides have been shown to undergo cyclization when treated under anhydrous acidic conditions to provide the novel 2,3-dihydro-5H-thieno[2,3-e]-4,1,2-oxathiazepine ring system. Incorporation of a primary sulfonamide group into position seven of the molecule provided compounds which inhibit human carbonic anhydrase II.
已证明,在无水酸性条件下处理3-(甲氧基甲氧基甲基)-2-硫代苯磺酰胺和3-羟甲基-N-甲氧基甲基-2-硫代苯磺酰胺可进行环化反应,以提供新颖的2,3-二氢-5 H-噻吩并[2, 3 - e ] -4,1,2-氧杂ia庚因环系统。将伯磺酰胺基团掺入分子的第7位提供了抑制人碳酸酐酶II的化合物。